What's in-between a Grateful Dead song?

Instrumental jams inside or in-between Grateful Dead songs, so you may not know what song is even on

What would this show sound like without any songs? Today I'll answer that long-standing curiosity of mine.

See, the Grateful Dead are synonymous with extended improvisational jamming. So I'm going to offer you nothing but prime examples of this. And as an added twist, I've chosen excerpts in such a way that it will very difficult for the listener to determine what song the jam is in, came out of or is going into. Or so I think.